FM CASE FILES 2 Flashcards
tx for GBS during pregnancy
penicillin
others: ampicillin, cephalothin, erythromycin, clinda
how to confirm rupture of membranes
see amniotic fluid leaking from cervix
polling of amniotic fluid in vaginal fornix
Nitrazine paper - pH >6.5 in vaginal fluid
ferning on dried slide
prolonged rupture of membranes predisposes to what
infection
define first stage of labor
contractions until complete cervical dilation
latent phase
active phase - starts at 4cm
rate of dilatation
epidural vs nonepidural
NO EPIDURAL
- 2cm / hr (nulliparous)
- 5cm / hr (parous)
define second stage of labor
delivery of fetus
normal duration of 2nd stage of labor
2 hours (nulliparous) 1 hour (parous)
epidural can prolong these times by 1 hour
normal duration of 3rd stage of labor
30 min
labor depends on 3Ps
power (strength of contractions)
passenger (size, lie, position)
pelvis (shape and size)
what can cause of false-positive nitrazine test
semen
blood
bacterial vaginosis
all can elevate pH
how do you assess fetal well being when mother is admitted to L&D
fetal heart rate monitoring
with a doppler ultrasound
or fetal scalp electrode
(requires membranes to be ruptured)
what 3 things do you look at in fetal heart rate tracings
baseline heart rate
variability
heart rate changes
normal baseline heart rate of fetus
110-160
normal variability of fetus
3-5 cycles per minute
comomn causes of decreased fetal heart rate variability
fetus sleeping
cns depressants (narcotic analgesics)
prematurity
fetal acidemia 2nd to hypoxemia
define fetal heart rate accel
15 beats/min
15 sec
what causes early decels
compression of fetal head
what causes late decel
uteroplacental insufficiency
causes:
maternal hypotension (given epidural or oxytocin)
maternal HTN, DM, placental abruptio
what causes variable decel
umbilical cord compression during contractions
what do you use to monitor uterine contractions and its strength
external toco
strength: IUPC (need ruptured membranres)
giving too much oxytocin during labor can result in what consequence
uterine hyperstimulation
late decels
cardinal movements during labor
refers to movement of fetal head
flexion
internal rotation (occiput to move anteriorly - symphysis)
extension
external rotation
maneuvers for shoulder dystocia
McRoberts Maneuver (hyperflexion)
suprapublic pressure
episiotomy
most calcium is found where in the body?
bones - 98% of total
bound to albumin - 1%
watch out for low albumin, causing low calcium (correct for this)
free - 1% (active)
formula for corrected serum calcium
corrected calcium =
[normal albumin - serum albumin] X 0.8(serum calcium)
what hormone decreases serum calcium and how?
calcitonin
causes increased renal excretion
what hormone increases serum calcium and how?
PTH
increases bone resorption by activating osteoclast
promotes kidney resorption
promotes GI absorption through calcitriol
most common cause of hypercalcemia
hyperparathyroidism
signs and sx
hypercalcemia
kidney stones
bone pain (arthritis, etc)
psychic (poor concentration, weakness, fatigue)
abdominal (pain, constipation, NV, pancreatitis)
first thing you look at when a pt has hypercalcemia
look at meds they’re taking
stop the suspected med
if a pt has hypercalcemia, what is the next step
order PTH
if PTH is low, feedback loop is working fine
if PTH is high or normal, feedback is not fine
(primary hyperparathyroidism)
how do you distinguish between primary hyperparathyroidism vs familial hypocalciuric hypercalcemia (FHH)
FHH is a genetic disorder
measure 24-hour urinary calcium
FHH: low calcium level
hyperparathyroidism: normal or elevated urinary calcium
if hypercalcemia, if PTH is low and Ca2+ is high, what lab test do you order next?
PTH-rP
parathyroid hormone related peptide
this is produced by cancers
lung, SCC of head and neck, kidney cx
how does PTH-rP work
osteoclast bone resorption
increases calcitriol (uptake in gut)
inc kidney resorption
tx for primary hyperparathyroidism
surgical removal of the adenoma
activities of daily living
bath dress eat toilet continence transfer from bed to chair
instrumental activities of daily living
transportation shop cook telephone manage money take meds housecleaning laundry
leading cause of blindness in elderly
age-related macular degeneration
what is macular degeneration
atrophy of cells in central macular region
leading to central vision loss
what is glaucoma
what is responsible for the disease
increased intraocular pressure
optic neuropathy
most common cause of blindness worldwide
cataracts
leading cause of blindness in working age adults in US
diabetic retinopathy
what is presbycusis
how does it present
age-related hearing loss
sensorineural hearing loss results in:
high-frequency loss
difficulty with speech discrimination
what is otosclerosis
autosomal dominant disorder of inner ear bones
loss of conduction
presents in 20-40s
speech discrimination is preserved
what is CAPD and contrast it with presbycusis
central auditory processing disorder
(CNS dysfxn)
has difficulty understanding spoken language
but hears sound well
quick cognitive screening test for dementia
clock draw
three-item recall
immunizations for ppl over 65
annual influenza
pneumococcal once
DPT booster
acute bronchitis
which antibiotic
none
antibiotics has not been shown to benefit
orgs in bacterial sinusitis (adults)
pneumococcus
h influenzae
orgs in bacterial sinusitis (children)
pneumococcus
h influenzae
moraxella catarrhalis
tx for acute sinusitis
first line
amoxicillin and bactrim
if fail, then 2nd line amoxicillin-clavulanic acid 2nd/3rd gen cephalo quinolones macrolides (azithro)
common causes of pharyngitis in teens/young adults
group A strep
mycoplasma pneumoniae
chlamydia pneumonia
arcanobacterium haemolyticus
group A strep findings
ABRUPT onset of sore throat/fever tonsillar/palatal petchiae tender cevical adenopathy NO COUGH sandpaperlike rash (scarlatiniform)
signs of
infectious mono
cervical and generalized adenopathy
HSM
atypical lymphocytes on smear
complication of infectious mono
splenic rupture to trauma
restrict sports
signs and sx
epiglottitis
cause?
stridor
drooling
toxic appearance
leaning forward (tripod position)
H influ
differential dx of tonsillar exudates
GAS EBV mycoplasma chlamydia adenoviruses
note: having tonsillar exudates does not automatically mean its bacteria vs virus
signs and sx
peritonsillar abscess
tonsil is pushed toward midline
uvula deviation